After doing a tiny bit of research and an equivalent amount of thinking, I've decided that the Double Gromacs core is wasting cycles. I usually don't pay much attention to what my machines are doing, but after the topic came up in another thread, I found a machine running the Double Gromacs core and started looking at CPU utilization. After checking for a minute (thorough testing, eh?), it looks like the utilization goes down to nothing about 4 times for 4-5 seconds at a time. That's a pretty significant amounf of wasted time per minute...possibly as much as a third of the time if my counting is accurate. This brings me to my question...should we be running two clients if we're getting Double Gromacs WU's? Normally it doesn't get us anything to do that, but if we can get them "resting" at alternate times, we should be able to increase our output by a noticeable amount. I fired off a second instance (unfortunately didn't get Double Gromacs) and I'm running 100% continuously now. Is this going to work or does my logic not transfer over to real conditions? Discuss.
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Double Gromacs wasting cycles?
- Thread starter Mattman
- Start date
Larry, thanks so much. I'm running two clients on my non-HT boxes right now, but I'd rather have your solution. Thanks also for the EMIII v2.5.1 to allow us to update our scores.Originally posted by LPerry
I have worked out a way to allow a user to reject the Double Gromacs work units if you use EM. I will release it in a few days after I finish testing. Stay tuned.
aren't the point totals about the same for reg v double? so if you can't get to the boxen... don't worry, output is the same.
can get to the boxen... run two instances, and have higher output.
... is this not the case? I thought it was a step in the right direction if the output is the same on less cycles. (though we do want to use ALL the cycles on the next version.)
can get to the boxen... run two instances, and have higher output.
... is this not the case? I thought it was a step in the right direction if the output is the same on less cycles. (though we do want to use ALL the cycles on the next version.)
